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salome-geom  6.5.0
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GEOMImpl_MeasureDriver Class Reference

#include <GEOMImpl_MeasureDriver.hxx>

List of all members.

Public Member Functions

void * operator new (size_t, void *anAddress)
void * operator new (size_t size)
void operator delete (void *anAddress)
Standard_EXPORT GEOMImpl_MeasureDriver ()
virtual Standard_EXPORT
Standard_Integer 
Execute (TFunction_Logbook &log) const
virtual Standard_EXPORT void Validate (TFunction_Logbook &) const
Standard_EXPORT Standard_Boolean MustExecute (const TFunction_Logbook &) const
Standard_EXPORT ~GEOMImpl_MeasureDriver ()
Standard_EXPORT const Handle (Standard_Type)&DynamicType() const
Standard_EXPORT Standard_Boolean IsKind (const Handle(Standard_Type)&AType) const

Static Public Member Functions

static Standard_EXPORT const
Standard_GUID & 
GetID ()

Friends

Standard_EXPORT friend
Handle_Standard_Type & 
GEOMImpl_MeasureDriver_Type_ ()

Detailed Description

Definition at line 125 of file GEOMImpl_MeasureDriver.hxx.


Constructor & Destructor Documentation

Definition at line 73 of file GEOMImpl_MeasureDriver.cxx.

{
}

Definition at line 149 of file GEOMImpl_MeasureDriver.hxx.

{};

Member Function Documentation

Standard_Integer GEOMImpl_MeasureDriver::Execute ( TFunction_Logbook &  log) const [virtual]

Definition at line 81 of file GEOMImpl_MeasureDriver.cxx.

{
  if (Label().IsNull()) return 0;    
  Handle(GEOM_Function) aFunction = GEOM_Function::GetFunction(Label());

  GEOMImpl_IMeasure aCI (aFunction);
  Standard_Integer aType = aFunction->GetType();

  TopoDS_Shape aShape;

  if (aType == CDG_MEASURE)
  {
    Handle(GEOM_Function) aRefBase = aCI.GetBase();
    TopoDS_Shape aShapeBase = aRefBase->GetValue();
    if (aShapeBase.IsNull()) {
      Standard_NullObject::Raise("Shape for centre of mass calculation is null");
    }

    gp_Ax3 aPos = GEOMImpl_IMeasureOperations::GetPosition(aShapeBase);
    gp_Pnt aCenterMass = aPos.Location();
    aShape = BRepBuilderAPI_MakeVertex(aCenterMass).Shape();
  }
  else if (aType == VERTEX_BY_INDEX)
  {
    Handle(GEOM_Function) aRefBase = aCI.GetBase();
    TopoDS_Shape aShapeBase = aRefBase->GetValue();
    if (aShapeBase.IsNull()) {
      Standard_NullObject::Raise("Shape for centre of mass calculation is null");
    }

    int index = aCI.GetIndex();
    gp_Pnt aVertex;

    if (aShapeBase.ShapeType() == TopAbs_VERTEX) {
      if ( index != 1 )
        Standard_NullObject::Raise("Vertex index is out of range");
      else
        aVertex = BRep_Tool::Pnt(TopoDS::Vertex(aShapeBase));
    } else if (aShapeBase.ShapeType() == TopAbs_EDGE) {
      TopoDS_Vertex aV1, aV2;
      TopoDS_Edge anEdgeE = TopoDS::Edge(aShapeBase);
      
      TopExp::Vertices(anEdgeE, aV1, aV2);
      gp_Pnt aP1 = BRep_Tool::Pnt(aV1);
      gp_Pnt aP2 = BRep_Tool::Pnt(aV2);

      if (index < 0 || index > 1)
        Standard_NullObject::Raise("Vertex index is out of range");

      if ( ( anEdgeE.Orientation() == TopAbs_FORWARD && index == 0 ) ||
           ( anEdgeE.Orientation() == TopAbs_REVERSED && index == 1 ) )
        aVertex = aP1;
      else
      aVertex = aP2;
    } else if (aShapeBase.ShapeType() == TopAbs_WIRE) {
      TopTools_IndexedMapOfShape anEdgeShapes;
      TopTools_IndexedMapOfShape aVertexShapes;
      TopoDS_Vertex aV1, aV2;
      TopoDS_Wire aWire = TopoDS::Wire(aShapeBase);
      TopExp_Explorer exp (aWire, TopAbs_EDGE);
      for (; exp.More(); exp.Next()) {
        anEdgeShapes.Add(exp.Current());
        TopoDS_Edge E = TopoDS::Edge(exp.Current());
        TopExp::Vertices(E, aV1, aV2);
        if ( aVertexShapes.Extent() == 0)
          aVertexShapes.Add(aV1);
        if ( !aV1.IsSame( aVertexShapes(aVertexShapes.Extent()) ) )
          aVertexShapes.Add(aV1);
        if ( !aV2.IsSame( aVertexShapes(aVertexShapes.Extent()) ) )
          aVertexShapes.Add(aV2);
      }

      if (index < 0 || index > aVertexShapes.Extent())
        Standard_NullObject::Raise("Vertex index is out of range");

      if (aWire.Orientation() == TopAbs_FORWARD)
        aVertex = BRep_Tool::Pnt(TopoDS::Vertex(aVertexShapes(index+1)));
      else
        aVertex = BRep_Tool::Pnt(TopoDS::Vertex(aVertexShapes(aVertexShapes.Extent() - index)));
    } else {
      Standard_NullObject::Raise("Shape for vertex calculation is not an edge or wire");
    }

    aShape = BRepBuilderAPI_MakeVertex(aVertex).Shape();
  }
  else if (aType == VECTOR_FACE_NORMALE)
  {
    // Face
    Handle(GEOM_Function) aRefBase = aCI.GetBase();
    TopoDS_Shape aShapeBase = aRefBase->GetValue();
    if (aShapeBase.IsNull()) {
      Standard_NullObject::Raise("Face for normale calculation is null");
    }
    if (aShapeBase.ShapeType() != TopAbs_FACE) {
      Standard_NullObject::Raise("Shape for normale calculation is not a face");
    }
    TopoDS_Face aFace = TopoDS::Face(aShapeBase);

    // Point
    gp_Pnt p1 (0,0,0);

    Handle(GEOM_Function) aPntFunc = aCI.GetPoint();
    if (!aPntFunc.IsNull())
    {
      TopoDS_Shape anOptPnt = aPntFunc->GetValue();
      if (anOptPnt.IsNull())
        Standard_NullObject::Raise("Invalid shape given for point argument");
      p1 = BRep_Tool::Pnt(TopoDS::Vertex(anOptPnt));
    }
    else
    {
      gp_Ax3 aPos = GEOMImpl_IMeasureOperations::GetPosition(aFace);
      p1 = aPos.Location();
    }

    // Point parameters on surface
    Handle(Geom_Surface) aSurf = BRep_Tool::Surface(aFace);
    Handle(ShapeAnalysis_Surface) aSurfAna = new ShapeAnalysis_Surface (aSurf);
    gp_Pnt2d pUV = aSurfAna->ValueOfUV(p1, Precision::Confusion());

    // Normal direction
    gp_Vec Vec1,Vec2;
    BRepAdaptor_Surface SF (aFace);
    SF.D1(pUV.X(), pUV.Y(), p1, Vec1, Vec2);
    if (Vec1.Magnitude() < Precision::Confusion()) {
      gp_Vec tmpV;
      gp_Pnt tmpP;
      SF.D1(pUV.X(), pUV.Y()-0.1, tmpP, Vec1, tmpV);
    }
    else if (Vec2.Magnitude() < Precision::Confusion()) {
      gp_Vec tmpV;
      gp_Pnt tmpP;
      SF.D1(pUV.X()-0.1, pUV.Y(), tmpP, tmpV, Vec2);
    }

    gp_Vec V = Vec1.Crossed(Vec2);
    Standard_Real mod = V.Magnitude();
    if (mod < Precision::Confusion())
      Standard_NullObject::Raise("Normal vector of a face has null magnitude");

    // Set length of normal vector to average radius of curvature
    Standard_Real radius = 0.0;
    GeomLProp_SLProps aProperties (aSurf, pUV.X(), pUV.Y(), 2, Precision::Confusion());
    if (aProperties.IsCurvatureDefined()) {
      Standard_Real radius1 = Abs(aProperties.MinCurvature());
      Standard_Real radius2 = Abs(aProperties.MaxCurvature());
      if (Abs(radius1) > Precision::Confusion()) {
        radius = 1.0 / radius1;
        if (Abs(radius2) > Precision::Confusion()) {
          radius = (radius + 1.0 / radius2) / 2.0;
        }
      }
      else {
        if (Abs(radius2) > Precision::Confusion()) {
          radius = 1.0 / radius2;
        }
      }
    }

    // Set length of normal vector to average dimension of the face
    // (only if average radius of curvature is not appropriate)
    if (radius < Precision::Confusion()) {
        Bnd_Box B;
        Standard_Real Xmin, Xmax, Ymin, Ymax, Zmin, Zmax;
        BRepBndLib::Add(aFace, B);
        B.Get(Xmin, Ymin, Zmin, Xmax, Ymax, Zmax);
        radius = ((Xmax - Xmin) + (Ymax - Ymin) + (Zmax - Zmin)) / 3.0;
    }

    if (radius < Precision::Confusion())
      radius = 1.0;

    V *= radius / mod;

    // consider the face orientation
    if (aFace.Orientation() == TopAbs_REVERSED ||
        aFace.Orientation() == TopAbs_INTERNAL) {
      V = - V;
    }

    // Edge
    gp_Pnt p2 = p1.Translated(V);
    BRepBuilderAPI_MakeEdge aBuilder (p1, p2);
    if (!aBuilder.IsDone())
      Standard_NullObject::Raise("Vector construction failed");
    aShape = aBuilder.Shape();
  }
  else {
  }

  if (aShape.IsNull()) return 0;

  aFunction->SetValue(aShape);

  log.SetTouched(Label()); 

  return 1;
}

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const Standard_GUID & GEOMImpl_MeasureDriver::GetID ( ) [static]

Definition at line 62 of file GEOMImpl_MeasureDriver.cxx.

{
  static Standard_GUID aMeasureDriver("FF1BBB65-5D14-4df2-980B-3A668264EA16");
  return aMeasureDriver; 
}

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Standard_EXPORT const GEOMImpl_MeasureDriver::Handle ( Standard_Type  ) const [inline]

Definition at line 155 of file GEOMImpl_MeasureDriver.hxx.

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Standard_EXPORT Standard_Boolean GEOMImpl_MeasureDriver::IsKind ( const Handle(Standard_Type)&  AType) const [inline]

Definition at line 156 of file GEOMImpl_MeasureDriver.hxx.

{ return (STANDARD_TYPE(GEOMImpl_MeasureDriver) == AType || TFunction_Driver::IsKind(AType)); } 

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Standard_EXPORT Standard_Boolean GEOMImpl_MeasureDriver::MustExecute ( const TFunction_Logbook &  ) const [inline]

Definition at line 147 of file GEOMImpl_MeasureDriver.hxx.

{ return Standard_True; }
void GEOMImpl_MeasureDriver::operator delete ( void *  anAddress) [inline]

Definition at line 137 of file GEOMImpl_MeasureDriver.hxx.

      { 
        if (anAddress) Standard::Free((Standard_Address&)anAddress); 
      }
void* GEOMImpl_MeasureDriver::operator new ( size_t  ,
void *  anAddress 
) [inline]

Definition at line 129 of file GEOMImpl_MeasureDriver.hxx.

      {
        return anAddress;
      }
void* GEOMImpl_MeasureDriver::operator new ( size_t  size) [inline]

Definition at line 133 of file GEOMImpl_MeasureDriver.hxx.

      { 
        return Standard::Allocate(size); 
      }
virtual Standard_EXPORT void GEOMImpl_MeasureDriver::Validate ( TFunction_Logbook &  ) const [inline, virtual]

Definition at line 146 of file GEOMImpl_MeasureDriver.hxx.

{}

Friends And Related Function Documentation

Standard_EXPORT friend Handle_Standard_Type& GEOMImpl_MeasureDriver_Type_ ( ) [friend]

Definition at line 285 of file GEOMImpl_MeasureDriver.cxx.

{

  static Handle_Standard_Type aType1 = STANDARD_TYPE(TFunction_Driver);
  if ( aType1.IsNull()) aType1 = STANDARD_TYPE(TFunction_Driver);
  static Handle_Standard_Type aType2 = STANDARD_TYPE(MMgt_TShared);
  if ( aType2.IsNull()) aType2 = STANDARD_TYPE(MMgt_TShared); 
  static Handle_Standard_Type aType3 = STANDARD_TYPE(Standard_Transient);
  if ( aType3.IsNull()) aType3 = STANDARD_TYPE(Standard_Transient);
 

  static Handle_Standard_Transient _Ancestors[]= {aType1,aType2,aType3,NULL};
  static Handle_Standard_Type _aType = new Standard_Type("GEOMImpl_MeasureDriver",
                                                         sizeof(GEOMImpl_MeasureDriver),
                                                         1,
                                                         (Standard_Address)_Ancestors,
                                                         (Standard_Address)NULL);

  return _aType;
}

The documentation for this class was generated from the following files: